How to change the unix path value in php environment?

@elise_daugherty 

To change the UNIX path value in a PHP environment, you can use the putenv() function. Here's an example:

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// Set a new path
$newPath = '/new/path';

// Set the new path in the environment using putenv()
putenv("PATH={$newPath}");

// Check if the path has been changed
$envPath = getenv('PATH');
echo $envPath; // Output: /new/path

In this example, we set the new path value '/new/path' using the putenv() function, which takes the form putenv("VARIABLE_NAME={$value}"). We then retrieve the path value using getenv('PATH') to verify that it has been changed.

Note that putenv() only changes the environment for the current script execution and does not permanently modify the system's environment variables.